Generally speaking, the Dualshock 4 is fairly sturdy and there aren’t too many reasons that it would need to be repaired. In the event that you want to make some cosmetic changes or fix something that is broken inside, this video will show you how to take apart a Dualshock 4 controller.
Step 1: Remove the back plate
There are 4 screws in the back of the controller. Remove all of these to loosen the back plate. Squeeze both handle parts on the controller and they will pop apart. Below the home button you will need to apply a bit of force as there are 2 clips holding the controller together. Once the bottom is loose you can gently pull the back plate off. There will be lots of cracking sounds, but these are just the plastic clips coming apart. Just do it gently as there are some ribbon cables inside that you need to take care of. Once the plastic part has come away from the back, remove the ribbon cable from the main controller that is connecting the light bar to the main board. The back plate will now be removed from the dualshock 4.
Step 2: Separate the main board
Disconnect the battery and underneath you will find one more screw. Remove this screw and the main board should come loose. Push the buttons or analog sticks and this should make the board pop up a bit. At the top of the Dualshock 4 is a ribbon cable that connects the touch pad. Remove this as the touch pad is connected to the front of the controller. Gently lift the main board out and your Dualshock 4 controller will now be in 3 pieces for you to do as you please.